Tech Note 089 - ESP Programming (Break-out boards)
After development using a 'Development Board' it is useful to transfer your programme/sketch to a bare ESP32/ESP8266 so that it uses the minimum of power and gives the best possible battery life, this video explains the relatively simple process required for programming, an activity that can seem to be quite daunting.
More info: http://g6ejd.dynu.com/index.php/micro...
ESP32 Breakout board: https://www.aliexpress.com/item/5Pcs-...